一种金属卟啉MOFs PCN‑224(Mn)/Cu(II)盐协同催化氧化环烷烃的方法,将PCN‑224(Mn)(0.001%～5%,g/mol)和Cu(II)盐(0.01%～10%,mol/mol)分散于环烷烃中,密封反应体系,搅拌下升温至90～150℃,通入氧化剂,保持设定的温度和压力,搅拌反应2.0～24.0h,之后反应液经后处理,得到产物环烷基醇和环烷基酮。
Hard metal WC – Co and carbon steel were successfully joined using double layered Cu alloy and amorphous Ni alloy as inert metal and an oil cooling method after brazing. Defects such as cracks and voids were not formed near the bonded zone. This result means that double layered insert metals...
atunci o alternativă la inițializare (vedeți Rezoluția 1) este să rulați un script de actualizare care să oblige salariile la nivel de stat/local să fie egale cu salariile federalilor.
本文基于在弱酸性的介质中,Cu(Ⅱ)能较好地催化溴酸钾氧化还原型罗丹明B此一显色反应,从而建立了一个测定痕量铜的新方法。本方法的灵敏度为8×10- 9 g·m L- 1 ,线性范围为0～0.5 μg/25m L,已用于水及若干蔬菜中痕量铜的测定,结果满意。关键...
故答案为:3Cu2O+14HNO3=6Cu(NO3)2+2NO↑+7H2O; (2)根据N原子守恒可知生成硝酸铜的物质的量为:n[Cu(NO3)2]=0.1L×0.6mol/L−0.224L22.4L/mol20.1L×0.6mol/L−0.224L22.4L/mol2=0.025mol, 故答案为:0.025mol; (3)由Cu元素守恒可得:2×n(Cu20)+n(CuO)+0.01mol=0.025mol, ...
近期,江苏省农业科学院植保所刘凤权研究员团队共同完成的题为“Identification ofFusarium cugenangenseas a causal agent of wilt disease onPyrus pyrifoliain China”的研究论文在Journal of Integrative Agriculture”的研究在Journal of Int...
溶液恰好使混合物完全溶解,完全生成硝酸铜、一氧化氮和水.现共收集到224mLNO气体(标准状况).求:1)相同物质的量的Cu、Cu2O和CuO,消耗该浓度硝酸最多的是哪一种物质,写出其与该硝酸反应的离子方程式.2)如原混合物中含单质铜0.01moL,则其中Cu2O、CuO的物质的量分别为多少?
doi:US2365228 A中国信息技术软件产业国际化CASE STUDY OF NCR'S SYSTEMEDIA GROUP CONTRACT WITH THIRD-PARTY FIRM ADP LOGISTICS FOR WAREHOUSING AND INFORMATION SYSTEMS.Sosnowski, Andrzejtime of culture
用实验验证Fe、Cu、Ag三种金属的活动性顺序,请写出几种可行方案所需试剂的名称. 扫码下载作业帮拍照答疑一拍即得 答案解析 查看更多优质解析 举报 答案:解析: 方案一:铁、银、硫酸铜溶液. 方案二:铜、硫酸亚铁溶液、硝酸银溶液. 方案三:铁、铜、盐酸、硝酸银溶液(其他合理也可). 解析看不懂?免费查看同类题...